movingAverageFilter.v.bak

module movingAverageFilter(
	output reg [17:0] addr_out,
	output reg [15:0] data_out,
	output reg writePulse,
	output reg readPulse,
	input wire BCK,
	input wire LRCK,
	input wire [15:0] inL;
	input wire [15:0] inR;
	output reg [15:0] outL;
	output reg [15:0] outR;
);

	reg [15:0] data = 16'hAAAA;
	reg [17:0] addr = 18'b0;
	reg [5:0] counter = 6'b0;
	reg LRCK_prev = 0;
	integer avgLength = 0; //static value
	integer sampleLCounter = 0; //counts up until avgLength is met
	integer sampleRCounter = 0;
	
always @(posedge BCK) begin
		writePulse = 0; //prev write should be done by now.
		if(LRCK != LRCK_prev) begin
			//new sample is ready to process.
			if(sampleCounter < avgLength) begin
				//store current sample into memory
				if(LRCK)begin
					//currenly R channel is recieving, so store L channel data because that's done.
					addr = 2*sampleLCounter; //even addresses are for left channel
					data = inL;
					sampleLCounter = sampleLCounter + 1;
				end else begin
					addr = 2*sampleLCounter +1; //odd addresses are for right channel
					data = inR;
					sampleRCounter = sampleRCounter + 1;
				end
				writePulse = 1; //toggle this off on the next BCK cycle.
			end else begin
				//at this point, we're guaranteed to have a full data buffer to work with
				
			end	
		end
		LRCK_prev = LRCK;
end
endmodule